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    <title>Document</title>
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    <script>
       var person={
           sayHi:function()
           {
               console.log('sayHi');
               return this;
           },
           sayHello:function()
           {
               console.log('sayHello');
               return this;
           },
           vote:function()
           {
               console.log('vote');
               return this;
           }
       }
       person.sayHello().sayHi().vote();
    </script>
    
</body>
</html>